Noise filter



FIG. 1 is a perspective view of a noise filter, showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view, with the left side being a mirror image thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for noise filter, as shown and described. 